Cosmology Crossword

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Across
  1. 3. Also called the habitable zone (10,4)
  2. 5. The whole of space and time (8)
  3. 6. Orbits a star (6)
  4. 8. Orbits around a star that's not the Sun (9)
  5. 10. Another energy emotted by a star (4)
  6. 11. Most important condition for life? (6,5)
Down
  1. 1. When Moon is between the Earth and Sun(5.7)
  2. 2. Collection of lots of stars (6)
  3. 4. Natural satellite of a planet (4)
  4. 6. Now a dwarf planet (5)
  5. 7. Proportion of reflected light (6)
  6. 9. Number of Earth from Sun (5)
  7. 11. Energy emitted by a star (5)
  8. 12. Distance between Sun and Earth (2)